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LiveUpdated 2026-09-19 01:18 UTC

At Anthropic, Claude now writes 80% of our code. Engineers ship 8x more code per quarter.

At Anthropic, Claude now writes 80% of our code. Engineers ship 8x more code per quarter. Side effect: Tests grew 10x.…

This is a vibe coding post classified by Jev as Code review & safety (a workflow), kept by the Vibe Coding Radar because it carries real work, not commentary.

At Anthropic, Claude now writes 80% of our code. Engineers ship 8x more code per quarter. Side effect: Tests grew 10x. CI jobs up 25x in 6 months. Here's what helped us scale: https://claude.com/blog/agentic-coding-is-straining-ci-heres-how-we-scaled-test-impact-analysis-at-anthropic

Posted by Addy Osmani (422.2k followers) 4 days ago · 5k likes · 777.6k views · view the original post on X. Kept by the Vibe Coding Radar as Code review & safety.

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